6.3. Features

Each version contains a list of compatible features. The following table lists the features compatible with Red Hat Virtualization 4.3.

Table 6.1. Feature Types

Feature

Description

Transparent huge pages memory policy

Allows you to define the availability of transparent huge pages for hosts. Acceptable values are true or false.

Gluster support

This features provides support for using Gluster Volumes and Bricks as storage.

POSIX-FS storage type

This feature provides support for the POSIX-FS storage type.

Port mirroring

Allows you to define the availability of port mirroring for virtual network interface cards. Acceptable values are true or false.

Display server time

Displays the current date and time in the API.

Display host memory

Displays the total memory for a specific host.

Display host sockets

Allows you to define the topology of a host CPU. Takes three attributes - sockets, threads and cores - which define the number of host sockets displayed, the number of threads and the number of cores per socket.

Search case sensitivity

Allows you to specify whether a search query is case sensitive by providing the case-sensitive=true|falseURL parameter.

Maximum results for GET requests

Allows you to specify the maximum number of results returned from a GET request.

JSON content type

Allows you to define a header that makes it possible to set a correlation ID for POST and PUT requests.

Activate and deactivate disks

Allows you to activate or deactivate a disk by specifying activate or deactivate as an action on a specific virtual disk.

Activate and deactivate network interface cards

Allows you to activate or deactivate a network interface card by specifying activate or deactivate as an action on a specific network interface card.

Snapshot refactoring

Allows you to refactor snapshots for virtual machines.

Remove template disks from specified storage domain

Allows you to remove virtual machine template disks from a specific storage domain using a DELETE request.

Floating disks

Floating disks are disks that are not attached to any virtual machine. With this feature, such disks also appear in the root collection rather than under specific virtual machines.

Asynchronous deletion

Allows you to specify that DELETE requests are to be performed asynchronously by specifying the asyncURL parameter.

Session-based authentication

Allows you to maintain a client-server session by providing an appropriate header, eliminating the need to log in with each request.

Virtual machine applications

Allows you to view a list of applications installed on a specific virtual machine. This list is located in the applications element of a specific virtual machine.

VirtIO-SCSI support

This feature provides support for para-virtualized SCSI controller devices.

Custom resource comments

Allows you to add custom comments to data centers and other resources.

Refresh host capabilities

Allows you to synchronize data on hosts and refresh the list of network interfaces available to a specific host.

Memory snapshot

Allows you to include the memory state as part of a virtual machine snapshot.

Watchdog device

Allows you to create watchdog devices for virtual machines.

SSH authentication method

Allows you to authenticate with hosts over SSH using an administrative user password or SSH public key.

Force select SPM

Allows you to force the selection of a host as SPM.

Console device

Allows you to control the attachment of console devices in virtual machines.

Storage server connections for storage domains

Allows you to view storage server connections to or from a specific storage domain.

Attach and detach storage server connections

Allows you to attach or detach storage server connections to or from a specific storage domain.

Single PCI for Qxl

Allows you to view multiple video devices via a single PCI guest device.

Add virtual machine from OVF configuration

Allows you to add a virtual machine from a provided OVF configuration.

Virtual network interface card profiles

Allows you to configure a profile that defines quality of service, custom properties and port mirroring for a specific virtual network interface card.

Image storage domains (tech preview)

Allows you to import images from and export images to an image storage domain such as an OpenStack image service (Glance).

Virtual machine fully qualified domain names

Allows you to retrieve the fully qualified domain name of a specific virtual machine.

Attaching disk snapshots to virtual machines

This feature provides support for attaching disk snapshots to virtual machines.

Cloud-Init

Allows you to initialize a virtual machine using Cloud Init.

Gluster brick management

Allows you to delete gluster bricks with data migration using the actions migrate and DELETE. The migrate action and stopmigrate action allow you to migrate data and reuse the brick.

Copy and move back-end disks

Allows you to copy and move disks in additional contexts.

Network labels

Allows you to provision networks on hosts using labels.

Reboot virtual machines

Allows you to reboot virtual machines via a single action.

A full list of feature elements and their attributes is located at the top of the section for the relevant version: